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/*
* Copyright (C) 2010 Francisco Jerez.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
#include "nv04.h"
#include "fbmem.h"
#include <subdev/bios.h>
#include <subdev/bios/bmp.h>
#include <subdev/bios/init.h>
#include <subdev/vga.h>
static void
nv05_devinit_meminit(struct nvkm_devinit *devinit)
{
static const u8 default_config_tab[][2] = {
{ 0x24, 0x00 },
{ 0x28, 0x00 },
{ 0x24, 0x01 },
{ 0x1f, 0x00 },
{ 0x0f, 0x00 },
{ 0x17, 0x00 },
{ 0x06, 0x00 },
{ 0x00, 0x00 }
};
struct nv04_devinit_priv *priv = (void *)devinit;
struct nvkm_bios *bios = nvkm_bios(priv);
struct io_mapping *fb;
u32 patt = 0xdeadbeef;
u16 data;
u8 strap, ramcfg[2];
int i, v;
/* Map the framebuffer aperture */
fb = fbmem_init(nv_device(priv));
if (!fb) {
nv_error(priv, "failed to map fb\n");
return;
}
strap = (nv_rd32(priv, 0x101000) & 0x0000003c) >> 2;
if ((data = bmp_mem_init_table(bios))) {
ramcfg[0] = nv_ro08(bios, data + 2 * strap + 0);
ramcfg[1] = nv_ro08(bios, data + 2 * strap + 1);
} else {
ramcfg[0] = default_config_tab[strap][0];
ramcfg[1] = default_config_tab[strap][1];
}
/* Sequencer off */
nv_wrvgas(priv, 0, 1, nv_rdvgas(priv, 0, 1) | 0x20);
if (nv_rd32(priv, NV04_PFB_BOOT_0) & NV04_PFB_BOOT_0_UMA_ENABLE)
goto out;
nv_mask(priv, NV04_PFB_DEBUG_0, NV04_PFB_DEBUG_0_REFRESH_OFF, 0);
/* If present load the hardcoded scrambling table */
if (data) {
for (i = 0, data += 0x10; i < 8; i++, data += 4) {
u32 scramble = nv_ro32(bios, data);
nv_wr32(priv, NV04_PFB_SCRAMBLE(i), scramble);
}
}
/* Set memory type/width/length defaults depending on the straps */
nv_mask(priv, NV04_PFB_BOOT_0, 0x3f, ramcfg[0]);
if (ramcfg[1] & 0x80)
nv_mask(priv, NV04_PFB_CFG0, 0, NV04_PFB_CFG0_SCRAMBLE);
nv_mask(priv, NV04_PFB_CFG1, 0x700001, (ramcfg[1] & 1) << 20);
nv_mask(priv, NV04_PFB_CFG1, 0, 1);
/* Probe memory bus width */
for (i = 0; i < 4; i++)
fbmem_poke(fb, 4 * i, patt);
if (fbmem_peek(fb, 0xc) != patt)
nv_mask(priv, NV04_PFB_BOOT_0,
NV04_PFB_BOOT_0_RAM_WIDTH_128, 0);
/* Probe memory length */
v = nv_rd32(priv, NV04_PFB_BOOT_0) & NV04_PFB_BOOT_0_RAM_AMOUNT;
if (v == NV04_PFB_BOOT_0_RAM_AMOUNT_32MB &&
(!fbmem_readback(fb, 0x1000000, ++patt) ||
!fbmem_readback(fb, 0, ++patt)))
nv_mask(priv, NV04_PFB_BOOT_0, NV04_PFB_BOOT_0_RAM_AMOUNT,
NV04_PFB_BOOT_0_RAM_AMOUNT_16MB);
if (v == NV04_PFB_BOOT_0_RAM_AMOUNT_16MB &&
!fbmem_readback(fb, 0x800000, ++patt))
nv_mask(priv, NV04_PFB_BOOT_0, NV04_PFB_BOOT_0_RAM_AMOUNT,
NV04_PFB_BOOT_0_RAM_AMOUNT_8MB);
if (!fbmem_readback(fb, 0x400000, ++patt))
nv_mask(priv, NV04_PFB_BOOT_0, NV04_PFB_BOOT_0_RAM_AMOUNT,
NV04_PFB_BOOT_0_RAM_AMOUNT_4MB);
out:
/* Sequencer on */
nv_wrvgas(priv, 0, 1, nv_rdvgas(priv, 0, 1) & ~0x20);
fbmem_fini(fb);
}
struct nvkm_oclass *
nv05_devinit_oclass = &(struct nvkm_devinit_impl) {
.base.handle = NV_SUBDEV(DEVINIT, 0x05),
.base.ofuncs = &(struct nvkm_ofuncs) {
.ctor = nv04_devinit_ctor,
.dtor = nv04_devinit_dtor,
.init = nv04_devinit_init,
.fini = nv04_devinit_fini,
},
.meminit = nv05_devinit_meminit,
.pll_set = nv04_devinit_pll_set,
.post = nvbios_init,
}.base;
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